Flume



H. K. DUTCHER.

nume.

APPLICNHON FILED `SEPT. l. 1921. 1,41 3,528. Patented Apr. 18, 1922.

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How/33D K DUTCHER Ex K/ a.

HTTORNLYS.

H. K. DUTCHER.

FLU'ME.

APPLICATION FILED SEPT. '1, |921- w 1,413,528. A Patented Apr.' 18,1922,

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HowARnK.' DU'rcnEre-jor VANCOUVER, Barmen COLUMBIA, CANADA. v ,Y

FLUME.

i .Be it known vthat I, HOWARD K. DU'rCHE-n, acitize'n of tlie Dominionof Canada, and resident of Vancouver, in the Province of BritishColumbia, YhaveA vinvented certain new Aand useful Improvements inFlumes, 'offwhichv the following is a specification.

This invention relates'to an improved conf struction in metal flumes,such as are used Y the drawings by for the conveyance of wateror thelike and particularly concerns that class of fiumeV which issubstantially semicircular in cross Vsectien. I

The improvements are directed to a'mean'sy for securing the edges of theilumev proper to tlie stringers of the 'frame in which the flume iscarried,.whereby the cross section area and therefore the carryingcapacity ot' the iume isincreased by the greater part of the depth ofthe stringers. The invention also includes a means for securing thejoints of the. flume section, which also provides a means torsuspendingthe flume from the stringei's. v

Theineans by. which these'several results areattaned are 'ullylset forthvin the olvlowing' specification referencebeing made to which it isaccompanied,

` showing thecon'neetion of its edges to the Fig.y 3 is a longitudinalsection of the string-ers thev lett hand halfsection being taken throughthe joint, while the right hand halt section is taken from the joint.Fig. 2in anenlarged detail of the edge joint to thestringer: v f

tlunie showing vthe joint lconnection of adjafcent lengths` and inelevation thel ineans for tightening the joint bands. 1'

Fig. 4 is a vertical section toan enlarged scale of the. jointtightening vand securing Figs. 5

joint tightening-band. .Y

'Figsl 'T and lS, similar views of the same on the inner band."` Y

Figs. 9 and l0, tace' and edge views offen alternative Cotter engaging fprojection .on the'outerband',V and Figures:V ll and'lQ are respectivelyface Y and edge views of the Cotter engaging projection on the innerband. Figure 133 is adetail view, partly in section, showing thecapacity, as indicatedbytheline Z of .the` vwater level, visYconsiderably increased.V

ande show in Vtace and edge -viewV lthe Cotter engaging projectiono't-tlie outer ping ends of the samej.

, Specication ofV Letters Patent. Patented V18,7. 1922-. appunti@ siedseptember 1,1921'. serai Navzievnsi. Y l v Cotter-,wedge attached bandprojection.rv f Y The flume proper is composed of a series of thin,semicylindrical shells 2, Apreferably of 'non-corrodible sheet metal,the ends ot which voverlap oneanother andthe l overl lapped ends aredrawn into Vj ointing. Contact with one Yanother byl bands 3 and aroundthe'inner andthe gouter-sides of Vthe overlapfnA The edges of theflume'shell 2 are jointed seV to the lower part'of the stringere. 8between Y which the flume is carried, in "thef mannerillustratedinFigs.V l and 2.1"A foldedstrip 5 oftarred'felt or othersuitable material ispassed withftliefold uppermost, halfof its widthoverthe edge of the flume on each side and abatten 6 issecuredwith nailsor u Y screws to'the Stringer,- wliich hatten holds the edge of theflume Vwithitsl'elt jointing ymateriale tightly into Contact with thein# ner face of'each stringerfllc. V 1 i The greater part of. the depthof the stringers is -thiisembodiedjin the cross. sec-" tional areaof the`luinejand'its carrying.

. Tte jointbanfis e .1 anda of the fiume i lengths'areV tightened onytheoverlapped `joint by a. bolt 9 througheach ofthe string-V ersjS Vin oradjacent their neutral axis, which V boltsalso pass throughvelongatedapertures/f1 ll-and Vl2 respecti'vely'in each end of fthe-V joint bands:Sand 42 Eachfbolt9 passes also through an elongated aperture 13lengthwisedisposed in a tapered cotter v10 introduced between ythe endsof the band `to be movable 'ina plane parallel tothe facesand.normaltotheir edges.'

of the bandsl Thelower edge ofY-thisfcotter l() engages aninwardprojection 175`Y roni. vthelower endV .of the .aperture l1 of theinner band 3, which apertureis elongated upward therefrom, and

fthe other. edge of the cotterengagesan inward; projection A16 `from theupper end of the aperture l2 of the VAouterlmnd 4f and. is

elongated downward. jr

ioo`

tively 'endwise moved inl oppo'sit'efdirections,

the inner 'one 3 being` compressed VVdownward.

while :the outerone 4 is drawn upwardtO tighten; onl the outer` side ofthe overlapfV on the overlapping -jointgoztthe flume lengths or v Whilethe cotters i0 are being driven to effect this tightening, the ends of 3and 4 are tightly held against the faces of the cotter by a washer underthe ample head of the bolt 9, which bolt may afterwards be furthertightened to secureJ the Cotter l0 against backward movement.

instead or the cotter engaging projections l5 and 16 ci' the bands 3Yand 4 being, as shown inFigs. 5, G, 7 and 8, viz., sheared or pressedalong the sides and inwardly bent from the plane of the bands into theplane of the Cotter, a piece 17 may be spotwelded or otherwise securedyacross the entire width oi the inner band 3, as shown in Figs. 1l andi2, and the end of fi may be doubled over toward the inner side, as ati8, and spot-welded, as shown in Figs. 9 and l() to provide effectiveengaging projections for the Cotter l0.

As set forth in the preamble, lthe j ointing of the edges of the flume 2to the'lower inner sides oi the stringers 4 between which the flume isCarried, increases considerably the Carrying capacity of theilumewithout any material increase in the costjof the same. The mannerof Connection is such as will enable a flume length to be readilyremoved, when necessary, as the joint securing nails or screws do notpass through the material oi the flume 2.

The manner of tightening the inner and outer Covering bandsr on theoverlapping joints ot the flume lengths, forms a simple and eiiectivemeans for attaining the desired object: Tho wedge actionV being vappliedas directly aspossible to the bands and ,in a plane parallel therewith,there is only a very slight bendingmoment on their ends, which moment isfully met by the resistance 0i the bolt 9 in holding the ends oi' theband together on` the wedge, which .bolt'also secures the wedge againstslacking 'back and sustains at the joint theV load of the flume from thestringers. Simple band supports bolt-connected to the stringers areintroduced at any desired distance intermediate the joint supports.

Having now particularly described my invention, i hereby declare vthatwhat I claim as new and desire to be protected in by Letters Patent, is:

l. A iiume construction, comprising the combination with a sheet metalflume and the stringersi between which it is carried, of means forjointing the upperv edges ofthe ilume to the inner adjacent sides of thestringers withk a water-tight joint wherebyV the available Carryingcapacity of the flume is increased by the amount which the stringersproject above the edges of the flume, in-

ner and outer bands around the overlapping ends oi adjacent iiumelengths, and means ifor simultaneously applying compression to, .theinner and tension to the outer band.

2. A flume construction, comprising the combination with a sheet metalflume andl jointing material interposed between each.v

upper edge oit' the fiume and the side of the adjacent Stringer, ahatten nailed to the stringer along the upper edge of the flume andextending halt over the fiume edge, inner and outer bands around theoverlapping ends of adjacent iiume lengths, and means ior simultaneouslycompressing the inner and applying tension to the outer band.

3. A fiume construction, comprising combination a sheet metal fiume, theedges of which are jointed to the lower and inner sides of the stringersbetween which the iiume is supported, means for jointing the adjacentoverlapping ends of the fiume lengths, said means comprising inner andouter bands extending around the inner and outer surfaces of theoverlapping ends, each end of each band having projections from theiradjacent sides, a Cotter introduced between the bands and between theirprojections, and means for holding the bands to` y gether on the Cotter.

:i flume Construction, comprising the combination with a sheet metalflume andthe stringere between which it is carried, oiE means forjointing the upper edges of the thune to the inner adjacent sides of thestringers with a water-tight joint whereby the available carryingcapacity of the lume is increased by the amount which the stringersproject above the edges of the flume, inner and outer bands around theoverlapping ends of adjacent flume lengths and means ier simultaneouslyapplying compression to the inner and tension to the outer band and 'forsecuring them to the stringers. l

5. A fiume construction, comprising the combination with a sheet metaliiume and the stringers between which it is carried, of means forjointing the upper edges of the fiume to the inner adjacent sides of thestringere with a water-tight joint, inner and outer bands around theoverlapping ends of adjacent flume lengths, and means for simultaneouslyapplying compression to the inner band and tension to the outer band,andfor securing the ends of the bands to the stringers and on the pressureapplying means.

in testimony whereof i aiiix my signature. Y

HOWARD ii DUTCHER.

